This The Joker fan art contains
business suit, suit, and suit of clothes.
There might also be
dress suit, full dress, tailcoat, tail coat, tails, white tie, and white tie and tails.
credit: TheJokerBlogs - "The following recordings are for the expressed purpose of medical research and is the sole ownership of Gotham City's Arkham Asylum Psychiatric Rehabilitation Program staff and facilities. [...]"